CN102112574A - Pitch emulsions - Google Patents
Pitch emulsions Download PDFInfo
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- CN102112574A CN102112574A CN2009801297578A CN200980129757A CN102112574A CN 102112574 A CN102112574 A CN 102112574A CN 2009801297578 A CN2009801297578 A CN 2009801297578A CN 200980129757 A CN200980129757 A CN 200980129757A CN 102112574 A CN102112574 A CN 102112574A
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- bitumen emulsion
- yatall
- acid
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/22—Materials not provided for elsewhere for dust-laying or dust-absorbing
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Abstract
An emulsion of pitch in water preferably characterized by having a lower level of tack on drying by virtue of using as the emulsifying agent, i.e., a fatty acid, a chemically modified fatty acid, a rosin acid, a chemically modified rosin acid, or combinations thereof, especially a tall oil fatty acid, or a chemically modified tall oil fatty acid, where the pitch emulsion is useful for reducing the development of fugitive dust in a dust-forming material.
Description
The cross reference of related application
The application requires to be combined in this by reference in the rights and interests of the common unsettled provisional application sequence number 61/085,840 of submission on August 2nd, 2008 and with it.
Invention field
The present invention relates to a kind of bitumen emulsion in the water widely, as a kind of Yatall MA pitch, coal-tar pitch, heavy crude oil, non-refinable crude overhead product, the uncommon product of Fischer-Top or pitch (pitch), for the development that reduces airborne dust, the loss that especially reduces coal dust from the spacious paulin rail motor (hopper car) of carry coal is useful.
Background of invention
According to estimates from western mine across the spacious paulin rail motor of U.S.'s carry coal during transportation since airborne dust be lost in the coal loading amount of possible loss 2% to 5% weight Anywhere.
A kind of financial loss and a kind of problem of environmental pollution have not only been represented in the loss of this coal, particularly for the densely populated areas of contiguous railway, and on track for a train and the gathering of coal dust on every side also be considered to influential to the train was derailed.Therefore, this area long-term pursue be used for during transportation reducing from rail motor the method for coal losses.
In these years, used and/or considered that multiple material is as a kind of method that reduces the level of the airborne dust that closes with the operation coal facies.This type of composition that reduces airborne dust also has practicality generally in multiple other dedustings are used.
Ladies and gentlemen applicant understands in some cases, and the Yatall MA bitumen emulsion is not considered to be applicable to the coal transport applications, because these conventional emulsions have shown over-drastic adhesivity level on the working conditions of remarkable scope, that is, and viscosity.
A kind of approach that is used to reduce the viscosity of bitumen emulsion relates to and adds a kind of component of a kind of fine particle weighting agent (as lime carbonate) as emulsified bitumen.This more low-viscosity bitumen emulsion can combining prepares in the water and with a kind of fine particle weighting agent (especially fine particle lime carbonate) by this pitch (as a kind of Yatall MA pitch or pitch (pitch)) is scattered in as external phase in the presence of a kind of emulsifying agent.Identified that multiple material is as the emulsifying agent that is fit to.
Ladies and gentlemen applicant finds in the presence of some emulsifying agent now unexpectedly, as U.S. Patent Application Serial Number 12/166,387 (U.S. Patent Publication 2009-0065736A1), 12,023,886 (U.S. Patent Publication 2008-0194795A1), 11/669,713 (U.S. Patent Publication 2008-0179570A1), and in the name that on January 30th, 2009 submitted to be called " Oxidized and Maleated Derivative Compositions " 12/363, Yatall MA product and derivative described in 483 are for the viscosity that reduces these bitumen emulsions there is no need this fine particle weighting agent material is included in the emulsive pitch.
Summary of the invention
In one embodiment, the invention provides a kind of bitumen emulsion, this emulsion is included in a kind of pitch particle that is scattered under a kind of existence of emulsifying agent in the water, as Yatall MA pitch, coal-tar pitch, heavy crude oil, non-refinable crude overhead product, the uncommon product of Fischer-Top or pitch (pitch), this emulsifying agent comprises sylvic acid or its combination of the lipid acid of a kind of lipid acid, a kind of chemically modified, a kind of sylvic acid, a kind of chemically modified.Typically, this emulsifying agent is by neutral partly.
This bitumen emulsion is useful for reducing the airborne dust formation relevant with forming dust material.A kind of useful characteristic of bitumen emulsion of the present invention is that this emulsion is dried to one and has the film that reduces viscosity.Useful especially emulsifying agent is based on the product of the ready denier oil acid that contains a kind of ready denier oil acid or a kind of chemically modified.This type of product can be to be selected from down group, and it constitutes: Yatall MA of rough Yatall MA, distillatory Yatall MA (comprising the product that is accredited as TOFA), chemically modified (comprising the Yatall MA of the Yatall MA that is accredited as dimeracid, oxidation, maleinization, the product of oxidation and Yatall MA maleinization and chemically modified form thereof) and composition thereof.Also can use other products, as those and the derivative thereof that from the oil of animal or plant derivation, obtains based on lipid acid.
In another embodiment, the invention still further relates to a kind of method of making bitumen emulsion, this method comprises with the stirring that is enough to produce a kind of emulsion carries out blend with a kind of pitch such as Yatall MA pitch, coal-tar pitch, heavy crude oil, non-refinable crude overhead product, the uncommon product of Fischer-Top or pitch (pitch) of fusing with a kind of emulsifying agent, and this emulsifying agent comprises sylvic acid or its combination of the lipid acid of a kind of lipid acid, a kind of chemically modified, a kind of sylvic acid, a kind of chemically modified.Typically, this emulsifying agent is by neutral partly.Useful especially emulsifying agent is based on the product of the ready denier oil acid that contains a kind of ready denier oil acid or a kind of chemically modified.This type of product can be to be selected from down group, and it constitutes: Yatall MA of rough Yatall MA, distillatory Yatall MA (comprising the product that is accredited as TOFA), chemically modified (comprising the Yatall MA of the Yatall MA that is accredited as dimeracid, oxidation, maleinization, the product of oxidation and Yatall MA maleinization and chemically modified form thereof) and composition thereof.Also can use other products, as those and the derivative thereof that from the oil of animal or plant derivation, obtains based on lipid acid.
In another embodiment, the present invention is also at a kind of method that is used in the development of the material that forms dust (particularly the transportation with bulk materials that produces dust such as coal is relevant) reduction airborne dust, this method comprises that the material to this formation dust applies a kind of bitumen emulsion of a value so that reduce airborne dust formation, this bitumen emulsion is included in a kind of pitch particle such as the Yatall MA pitch that is scattered under a kind of existence of emulsifying agent in the water, coal-tar pitch, heavy crude oil, the non-refinable crude overhead product, Fischer-Top wishes product, or pitch (pitch), this emulsifying agent comprises a kind of lipid acid, a kind of lipid acid of chemically modified, a kind of sylvic acid, a kind of sylvic acid of chemically modified, or its combination.Typically, this emulsifying agent is by neutral partly.Useful especially emulsifying agent is based on the product of the ready denier oil acid that contains a kind of ready denier oil acid or a kind of chemically modified.This type of product can be to be selected from down group, and it constitutes: Yatall MA of rough Yatall MA, distillatory Yatall MA (comprising the product that is accredited as TOFA), chemically modified (comprising the Yatall MA of the Yatall MA that is accredited as dimeracid, oxidation, maleinization, the product of oxidation and Yatall MA maleinization and chemically modified form thereof) and composition thereof.Also can use other products, as those and the derivative thereof that from the oil of animal or plant derivation, obtains based on lipid acid.
In an alternate embodiment, be dried to be scattered under the existence that an a kind of bitumen emulsion with the film that reduces viscosity is included in a kind of emulsifying agent in the water and with a kind of fine particle weighting agent (especially a kind of fine particle calcium salt such as lime carbonate) a kind of pitch particle of bonded, as the pitch of above evaluation, and comprise Yatall MA pitch, coal-tar pitch, heavy crude oil, non-refinable crude overhead product, the uncommon product of Fischer-Top or pitch (pitch).In this alternate embodiment, these that there is no need this emulsifying agent is limited to above evaluation are based on the material of lipid acid with based on the material of sylvic acid.But, can be with cationic to comprise, anionic, the non-ionic and amphoteric material of inventory expansion of suitable emulsifying agent.In this embodiment, conventional determining be can follow and the suitability of any concrete emulsifying agent material and the suitable amount that will use selected.Can use based on proteinic emulsifying agent, as material, gelatin, Yelkin TTS, casein and particularly alkali-metal salt, as caseic sodium and ammonium salt based on soybean protein; The soap of resin and the emulsion of resin, and as some maillard reaction product described in the U. S. application sequence number 12/479,087.In this alternate embodiment, confirmed that casein is a kind of suitable emulsifying agent, especially a kind of alkaline caseinate such as sodium-caseinate or ammonium caseinate.This alkalescence caseinate can be pre-formed or its original position can be formed when the water of this emulsion of preparation, for example during this water of preparation by casein is mixed with a kind of alkali metal hydroxide.
These and other embodiment proposes in the following description.Other embodiments should be clearly for those of ordinary skill in the art in addition after having considered this specification sheets.
Detailed description of the invention
The present invention relates to a kind of bitumen emulsion, relate to its preparation method and relate to this emulsion be used for multi-purpose application.
The present invention relates to a kind of bitumen emulsion particularly, particularly is dried to a kind of bitumen emulsion with the film that reduces viscosity for the viscosity of a kind of not filled bitumen emulsion of using a kind of proteinic casein emulsification agent to make.Bitumen emulsion of the present invention is included in a kind of pitch particle that is scattered under a kind of existence of emulsifying agent in the water, as Yatall MA pitch, coal-tar pitch, heavy crude oil, non-refinable crude overhead product, the uncommon product of Fischer-Top or pitch (pitch), this emulsifying agent comprises sylvic acid or its combination of the lipid acid of a kind of lipid acid, a kind of chemically modified, a kind of sylvic acid, a kind of chemically modified.Typically, this emulsifying agent is by neutral partly.Useful especially emulsifying agent is based on the product of the ready denier oil acid that contains a kind of ready denier oil acid or a kind of chemically modified.This type of product can be to be selected from down group, and it constitutes: Yatall MA of rough Yatall MA, distillatory Yatall MA (comprising the product that is accredited as TOFA), chemically modified (comprising the Yatall MA of the Yatall MA that is accredited as dimeracid, oxidation, maleinization, the product of oxidation and Yatall MA maleinization and chemically modified form thereof) and composition thereof.Also can use other products, as (saponification) that from the oil of animal or plant derivation, obtain those and derivative thereof based on lipid acid.
As known in the art, the yellow black oily liquids of the resin that obtains as a kind of acidifying by product during Kraft processing that Yatall MA is meant in pine or vitriol are handled.According to this method, pine is digested with alkali and sulfide, generate tall oil soap and rough vitriol rosin (as by product).The acidifying of this tall oil soap provides rough Yatall MA.Rough Yatall MA normally is a kind of mixture (seeing " nzic.org.nz/ChemProcesses/forestry/4G.pdf ") of sylvic acid, lipid acid, sterol, high molecular alcohols and other alkyl chain materials before refining.Use the distillation of this rough Yatall MA to reclaim multiple product.One of these products are Yatall MA pitch, and this is a kind of known commercial material, and are well-known in the art therefore.
The accurate composition of a kind of Yatall MA bituminous will partly depend on it will be carried out isolating method.By its definition, Yatall MA pitch is the minimum volatile cut that reclaimed during the distillation of rough Yatall MA (CTO) and the cut of minimum water compatible.The distillation of CTO has produced the material of relative volatility, and these materials mainly are made up of so-called overhead distillate, sylvic acid and lipid acid.Minimum volatile resistates from this still-process is a Yatall MA pitch.Yatall MA pitch is that a kind of acid number is the semi-fluid of 25-50, tarry material.Typically, Yatall MA pitch comprises about lipid acid of 5% to 20%, 5% to 20% resinous acid and 60% to 90% the neutral substance that is commonly referred to " not saponifiable matter ", this neutral substance comprises higher alcohols and sterol, and wherein these per-cents are based on weight.Yatall MA pitch is hydrophobic on characteristic.In Yatall MA pitch, also often find the rosin of dimerization and the lipid acid of dimerization.About providing Yatall MA bituminous different methods to see also for example U.S. Patent number 3,943,117,4,075,188; 4,154,725; 5,164,480; 5,132,399; 4,524,024; 4,495,095; And 4,238,304.That those of ordinary skill in the art will also be understood that because Yatall MA pitch is to obtain from multiple natural origin, its composition also can change in different sources.
Yatall MA pitch is commercially available in multiple source, comprise Georgia-Pacific ChemicalsLLC (
Yatall MA pitch).
Coal-tar pitch is a kind of by product of coke production and gasification effect.Coal-tar pitch is a kind of mixture of complexity, comprises multiple polycyclic aromatic hydrocarbons and heterogeneous ring compound.
Pitch (pitch) is the liquid or the semisolid of a kind of viscosity, black and high viscosity, and it is present in most of crude oil and in some natural sediments, is called as pitch sometimes.It is also commercially available in originating widely.
The other materials that can be used for forming a kind of bitumen emulsion according to the present invention comprises that heavy crude oil, non-refinable crude overhead product and Fischer-Top wish product.
As run through this specification sheets and claims are employed, so term pitch is intended to comprise Yatall MA pitch, coal-tar pitch, heavy crude oil, non-refinable crude overhead product, the uncommon product of tarry Fischer-Top and pitch (pitch).
Because pitch and the particularly common softening temperature of Yatall MA bituminous, 20 ℃ to 50 ℃ typically, a kind of difficulty that often meets with when using bitumen emulsion such as Yatall MA bitumen emulsion is that the exsiccant emulsion is too soft and too sticking for a kind of specific purposes.The present invention is based on following discovery, promptly by (promptly at one of emulsification reagent (emulsifying agent) of a particular group, comprise sylvic acid or its combination of the lipid acid of a kind of lipid acid, a kind of chemically modified, a kind of sylvic acid, a kind of chemically modified, and under the existence a kind of emulsifying agent that especially comprises the ready denier oil acid of a kind of ready denier oil acid or a kind of chemically modified) in water emulsified bitumen, the viscous characteristics of a kind of film that is generated when dry this bitumen emulsion has been considerably reduced.Typically, this emulsifying agent is by neutral partly.The useful especially product that comprises the ready denier oil acid of a kind of ready denier oil acid or a kind of chemically modified can be to be selected from down group, and it constitutes: Yatall MA of rough Yatall MA, distillatory Yatall MA (comprising the product that is accredited as TOFA), chemically modified (comprising the Yatall MA of the Yatall MA that is accredited as dimeracid, oxidation, maleinization, the product of oxidation and Yatall MA maleinization and chemically modified form thereof) and composition thereof.
In a broad sense, constituted straight chain or ramose, saturated, monounsaturatedly or polyunsaturated had the fatty acid group of 8 to 24 carbon atoms, particularly 12 to 22 carbon atoms and can obtain as the lipid acid of the lipid acid of emulsifying agent and chemically modified according to the present invention from multiple source.Representational lipid acid comprises oleic acid, lauric acid, linolic acid, linolenic acid, palmitinic acid, stearic acid, ricinolic acid, nutmeg acid, eicosanoic acid, docosoic and composition thereof.
By using known saponification technology, can be with multiple animal and plant oil (triglyceride level) (for example Semen Lini oil, Viscotrol C, tung oil, soybean oil, Oleum Gossypii semen, sweet oil, Canola Oil, Semen Maydis oil, sunflower seed oil, peanut oil, Oleum Cocois, Thistle oil, plam oil and composition thereof, just list and give some instances) use as the source of one or more lipid acid, be used to make a kind of emulsifying agent that is used in combination with the present invention.A kind of source of lipid acid is a Yatall MA, and distillatory Yatall MA particularly.
Main sylvic acid is abietic acid, dehydroabietic acid, isopimaric acid and pimaric acid.A kind of source of sylvic acid is a Yatall MA, and distillatory Yatall MA particularly.Generally, the sylvic acid of interested chemically modified should keep some polar groups as carboxylic acid or the polar group that has been added into as amine (rosin Amine D), polyglycol chain (as non-ionic emulsifying agent) or the other acid functionality that obtains by Diels Alder reaction with fumaric acid or toxilic acid/acid anhydrides.Therefore, the sylvic acid of chemically modified comprises the rosin that the sylvic acid of rosin, the maleinization of disproportionation, the diethylene tetramine amido amine of sylvic acid, amine-modified sylvic acid, abietate, rosin ethoxylate, phenol modifies, rosin, rosin-formaldehyde adducts and the hydrogenant rosin of dimerization.
As noted above, use the distillation of rough Yatall MA to reclaim multiple product and an independent subclass of these products also is used as emulsifying agent and/or is used to produce this emulsifying agent that is used for this asphalt component of emulsification according to the present invention.Particularly, the ready denier oil acid that comprises a kind of ready denier oil acid or a kind of chemically modified according to a kind of suitable emulsifying agent used in the present invention, and can be selected from down group, it constitutes: Yatall MA of rough Yatall MA (CTO), distillatory Yatall MA (DTO), TOFA, chemically modified and composition thereof.The distillatory Yatall MA is a kind of mixture of multiple lipid acid and multiple sylvic acid.TOFA is the lipid acid cut higher than DTO volatility.The Yatall MA of chemically modified comprises the Yatall MA of the maleinization of the Yatall MA of Yatall MA (MTO), the maleinization of dimeracid, oxidation, oxidation and Yatall MA maleinization (Oxmal) and other chemically modifieds.Several in these materials at U.S.'s non-provisional application sequence number 12/166,387 (U.S. Patent Publication 2009-0065736A1); 12,023,886 (U.S. Patent Publication 2008-0194795A1); 11/669,713 (U.S. Patent Publication 2008-0179570A1) and 12/363, be described in 483 (name is called OXIDIZED AND MALEATEDDERIVATIVE COMPOSITIONS), these disclosure content is combined in this with its full content by reference.
Main unsaturated fatty acids is oleic acid and linolic acid in the rough Yatall MA.Therefore being used for suitable emulsifying agent of the present invention comprises the form of oleic acid, linolic acid and/or its chemically modified as noted above.Can be according to the present invention from Georgia-Pacific Chemicals LLC, Atlanta, representative Yatall MA product that GA is purchased and that be suitable as a kind of emulsifying agent comprises
100,
101,
300,
304,
520,
530,
540,
542,
656,
690,
692,
MTO,
100,
105 and
105K,
110 and
307.
The Yatall MA of the maleinization of chemically modified comprises the ready denier oil acid of the chemically modified maleinization that is selected from down group, constituting of this group: (1) carries out esterification with the ready denier oil acid and the ricinolic acid of this maleinization, (2) use to be enough to causing that a kind of polyamine that value crosslinked between the fatty acid molecule of maleinization provides carries out the amidation of the ready denier oil acid of these maleinizations, (3) use to be enough to causing that a kind of amino alcohol that value crosslinked between the fatty acid molecule of maleinization provides carries out esterification and amidated a kind of combination of the ready denier oil acid of maleinization, (4) ready denier oil acid and a kind of alkynyl alcohol (alcohol of acetylene series) with maleinization carries out esterification, this alkynyl alcohol is selected from: propargyl alcohol, 1-hexin-3-alcohol, 5-decine-4, the 7-glycol, propargyl alcohol of o-alkylation and composition thereof, (5) ready denier oil acid and the morpholine with maleinization carries out amidation, (6) ready denier oil acid and a kind of fatty tetrahydroglyoxaline with maleinization carries out amidation, (7) ready denier oil acid and a kind of phosphoric acid ester of maleinization are carried out esterification, (8) ready denier oil acid and a kind of metal chelator with maleinization reacts (metal chelator modification), (9) ready denier oil acid and the seed amino acid with maleinization reacts, (10) carrying out xanthogenate modifies, (11) carrying out thiophosphatephosphorothioate modifies, (12) carrying out hydroxamic acid modifies, (13) carrying out sulfonate modifies, (14) carry out vitriol and modify, and combination.Specifically referring to U.S. Patent Application Serial Number 12/166,387 (U.S. Patent Publication 2009-0065736A1).
The amount of the emulsifying agent that uses depends on employed bituminous concrete property to a certain extent.Frequently, this emulsifying agent will constitute this anywhere and be intended to emulsified bituminous from about 1% to 100% weight (promptly, emulsifying agent and bituminous weight ratio are 0.01: 1 to 1: 1), this emulsifying agent comprises this bituminous from 20% to 95% weight more frequently, and this emulsifying agent comprises this bituminous from 25% to 90% weight the most frequently.As point out, a kind of suitable emulsifying agent comprises a kind of ready denier oil acid, this ready denier oil acid comprises the kind of oleic acid and/or linolic acid and/or oleic acid and/or linoleic chemically modified, and can be selected from down group easily, constituting of this group: Yatall MA of rough Yatall MA, distillatory Yatall MA, TOFA, chemically modified and composition thereof, wherein the Yatall MA of chemically modified comprises the Yatall MA of the maleinization of the Yatall MA of Yatall MA, the maleinization of dimeracid, oxidation, oxidation and Yatall MA maleinization and other chemically modifieds.Can follow the suitable value of bituminous that conventional determining is selected suitability any in these concrete emulsifying agents and will be used for a kind of concrete source of emulsification.
By at first prepare water-based alkalescence mutually and then at this emulsifying agent (especially a kind of emulsifying agent) based on ready denier oil acid based on lipid acid thus the water that will so prepare down mix the bitumen emulsion of the present invention of formation easily with the pitch of fusing.Frequently, with solids concn between about 30% to 60% solid, frequently between about 40% to 50% solid the preparation a kind of suitable emulsion, main solid is pitch itself and this emulsifying agent.For a variety of reasons, this emulsion often is with possible the most highly filled preparation.Form after a kind of emulsion by the pitch of water and this fusing and this emulsifying agent are mixed, can reduce solids content simply by adding extra water.Really, may wish to transport this bitumen emulsion, thereby add extra water in the place of using this emulsion to use needed significantly higher solids content than any concrete final use.One of benefit of the present invention is bitumen emulsion of the present invention, particularly a kind of Yatall MA bitumen emulsion, can be diluted significantly before using, and this emulsion will keep sufficiently long stable, is enough to it is applied in a kind of typical commercial device.
With its simplest form, by with water (it has formed the external phase of this emulsion) with a kind of alkali, often be that caustic alkali (NaOH) mixes, and adds this water that this pitch and this emulsifying agent (being heated to this pitch and being fluid fully so that easily be scattered in a temperature in the water) come together to prepare together with the stirring that is enough to produce this emulsion then.Can apply extra heat and assist to finish mixing.Form after a kind of emulsion by this water is mixed with the pitch of this fusing, can reduce solids content simply by adding extra water.
The pitch particle that distributes in this emulsion is typically less than 2 microns and normally be average in 1 to 3 micron scope.
When sylvic acid or its combination with the lipid acid of a kind of lipid acid, a kind of chemically modified, a kind of sylvic acid, a kind of chemically modified, and when especially forming a kind of bitumen emulsion with a kind of emulsifying agent based on ready denier oil acid, the neutralization levels of the acid number of this emulsifying agent (being degree) influenced should the drying emulsion viscosity.Insufficient neutralization of these acid has generated a kind of oily film, and when can be for example measuring this film after at room temperature four hours, this film is still viscosity.A kind of suitable neutralization levels has generated a kind of minimum extremely noncohesive dry film that has.Estimate best neutralization or the saponification level will depend on this emulsifying agent and the character of be used for partly neutralizing this sour alkali or alkaline matter.For example, for distillatory Yatall MA (DTO), contain that a kind of emulsion that is less than about 2% caustic alkali is dry to form a kind of oily film with certain after-tack, the emulsion of 2.5% to 3.5% caustic alkali is dry to form a kind of desirable minimum film to inviscid level that has and contain.Only use conventional determining just can determine the suitable neutralization levels of any concrete emulsion based on acid.
Therefore, the pH of this external phase (that is water) influences the characteristic of this bitumen emulsion.In a further embodiment, the pH of this water-based external phase is adjusted to 8.2 to 12 between, between 8.5 to 12, between 9.0 to 12, between 9.5 to 12 or between 10.0 to 12.Can use extensive various alkaline matter to regulate this pH, comprise alkali-metal oxyhydroxide and carbonate; But use caustic alkali (NaOH) solution to prove suitable simply.The pH of this water is by adding this alkaline matter (for example add to this emulsifying agent or add in the water that is used to form this emulsion) before or after forming bitumen emulsion and regulate in that water being mixed with this pitch and emulsifying agent in a kind of suitable mode.The pH of this water can regulate by added a kind of suitable alkali (as sodium hydroxide) before this emulsion of preparation.
One of advantage of the present invention is to prepare a kind of stable emulsion with a kind of solids concn, under this concentration, this emulsion can easily be pumped and be used for storing and transportation (often being to remote location), and this emulsion can further be diluted so that use without undergoing the problem that is caused owing to the emulsion unstable then at this moment.
An alternate embodiment, this bitumen emulsion comprises a kind of fine particle weighting agent, as a kind of fine particle calcium salt and specifically be lime carbonate.A kind of existence of weighting agent also is used to reduce the viscous characteristics of the film produced by a kind of bitumen emulsion of drying.Also operable other weighting agent materials comprise gypsum, lime, silica, magnesium oxide, magnesiumcarbonate, rhombspar, vermiculite, talcum, nutshell powder, nanoclay, wilkinite, kaolin and other similar substances.
Wherein fine particle is meant that the average particle size of this weighting agent is to have a kind of size-grade distribution less than 30 microns (μ m) and this weighting agent, thus these filling agent particles at least 80% dimensionally less than 50 μ m.
A kind of suitable weighting agent is a fine particle lime carbonate.The fine particle lime carbonate that is fit to can pass through or mechanical mill (for example, by the grinding stone lime stone) also or by chemical precipitation is produced.Generally, can produce less mean particle size by precipitation technology.Really, it is available being lower than one micron granularity.The lime carbonate of mechanical mill and both commercial source of sedimentary lime carbonate comprise Huber Engineered Materials (J.M Huber company), Omya AG and Imerys.
Use a kind of alkaline matter such as lime carbonate as one of benefit of this fine particle weighting agent to be, it has reduced erosion, and erosion is that people typically suffer from, and especially when using Yatall MA pitch, it is generally caused by this bituminous intrinsic acidity.
The relative value with bituminous of weighting agent can change in wide boundary in this emulsion.Generally,, this weighting agent is applied to this emulsion with a value based on the value of emulsion medium pitch, thus this weighting agent constituted bituminous weight 30% to 100% between weight.Frequently, the value that comprises the weighting agent of about 40% to 80% weight of this bituminous should be enough.
Prior art has illustrated the composition that can be used for reducing dust, has been applied to the plurality of devices design of spacious paulin rail motor (hopper car) as bitumen emulsion of the present invention.It should be noted that following United States Patent (USP) 3,961,752 in this regard; 5,350,596; 5,352,297 and 5,441,566.Be used for one deck bitumen emulsion spraying or the development that additionally is deposited on airborne dust therefrom lip-deep these and other device with the material that is lowered can be used in combination with the present invention.This bitumen emulsion by the suitable value of spraying on the material that forms dust has formed an outer shell, and this layer resisted the wind of the airborne dust formation of facilitating coal and the effect of other factors.Be that value between 2 to 10 weight percents is that the bitumen emulsion of 10 to 30 gallons of (U.S.)/1000 square feet coal surface-area should be enough usually in most of the cases by being diluted to solids concn.Apparently, higher or lower in other cases application rate and different dilution levels may be suitable.
Except useful to the spacious paulin rail motor of handling carry coal, bitumen emulsion of the present invention may develop and therefore exist in any application that reduces the needs that this type of dust forms at airborne dust also is useful potentially.Therefore other application comprise by rail motor transport other large quantities of solids, by transport tape carry coal and other large quantities of solids (as in full scale plant), the storage area of coal and the road in rural area, comprise lumbering and mining road.Other large quantities of solid examples comprise fertilizer, mineral and cereal.
Though it should be understood that the present invention has combined with its specific embodiments is described, above explanation and example are intended to explanation but not limit the scope of the invention.
Example 1A kind of preparation of Yatall MA bitumen emulsion
A kind of bitumen emulsion that suppresses dust that is applicable to can be made by four kinds of components are carried out blend by following steps, and these four kinds of components are: Yatall MA pitch, distillatory Yatall MA (DTO), 50% caustic solution and water.The water of 69.9g room temperature is added in the 250ml vial.Add a kind of 50% caustic solution (4.4g).Shake the mixture of this water and caustic alkali.With 50.0 the gram be heated to 60 ℃ Yatall MA pitch (that is,
Yatall MA pitch) add in the solution of this water and caustic alkali.The 16.0g DTO (distillatory Yatall MA) that also is preheated to 60 ℃ is added in this water, caustic alkali and the Yatall MA bituminous mixture, and manually shake this mixture up to forming a kind of uniform mixture.
Example 2The Yatall MA bitumen emulsion of test case 1
The sample of bitumen emulsion that will be used to suppress the dust of example 1 is applied to a Q plate (Q-Lab company), and uses a wet coating device to make the thick film in one 8 Mill (0.2mm basically).Allow at room temperature this film drying 3 hours, and test its surface adhesive or viscosity by contacting this film then with a glove finger.This film has been dried to a kind of not sticking form, thereby the lip-deep film of this glove finger from this Q plate can be lifted, and only stays a slight marking of these gloves.
Example 3A kind of preparation of Yatall MA bitumen emulsion of filling
Add the water of the about 8.8 parts of weight of value in the suitable containers and be heated to 80 ℃ to 85 ℃ temperature.Alkaline caseinate (ammonium caseinate) with the about 1.25 parts of weight of value; A kind of fine grain lime carbonate of the about 12.5 parts of weight of value (as from the obtainable Hubercarb G260 of Huber EngineeredMaterials (the J.M Huber company)); And value is that a kind of aqueous sodium hydroxide solution (50%NaOH by weight) of 1.9 parts of weight adds in the entry, and thoroughly mixes (mix and continue about 30 minutes).The water that under constantly mixing, in the paste that obtains, adds 50.25 parts of extra weight.As required with the temperature regulation to 80 of this aqueous mixture ℃ to 85 ℃ temperature, the Yatall MA pitch with a kind of fusing of the about 25.2 parts of weight of value under the mixing that is enough to form desired emulsion adds this aqueous phase.Can add a kind of biocide then.
Example 4A kind of preparation of Yatall MA bitumen emulsion of filling
Add the water of the about 3.7 parts of weight of value in the fitted vessel and be heated to 80 ℃ to 85 ℃ temperature.Alkaline caseinate (ammonium caseinate) with the about 1.25 parts of weight of value; A kind of sedimentary lime carbonate of the about 17.6 parts of weight of value (as from the obtainable Opti-cal 600 of Imerys); And value is that a kind of aqueous sodium hydroxide solution (50%NaOH by weight) of 1.9 parts of weight adds in this water, and thoroughly mixes (mix and continue about 30 minutes).The water that under constantly mixing, in the paste that obtains, adds 50.25 parts of extra weight.As required with the temperature regulation to 80 of this aqueous mixture ℃ to 85 ℃ temperature, the Yatall MA pitch with a kind of fusing of the about 25.2 parts of weight of value under the mixing that is enough to form desirable emulsion adds this aqueous phase.Can add a kind of biocide then.
Evaluate a kind of concrete material, comprise the viscosity of bitumen emulsion of the present invention, also can use ASTM D 1640-03 " Methods for Drying, Curing or Film Formationof Organic Coatings at Room Temperature " to measure.As noted, use this test, viscosity that can more multiple bitumen emulsion, and these emulsions with respect to unmodified of the present invention demonstrate viscosity and reduce significantly.Particularly, a kind of wet film of emulsion of the present invention should become a kind of not sticking film at 4 hours inner dryings.When this bitumen emulsion will be applied in the concrete application, the thickness of this test film should be the thickness of the film of emulsion basically.In some applications, as be used for alleviating airborne dust formation, should test this bitumen emulsion with the film thickness of 8 Mills at spacious paulin rail motor.It is that 7 Mills, 6 Mills, 5 Mills, 4 Mills, 3 Mills, 2 Mills or littler wet film are evaluated suitability that other application may require dry thickness.
In further embodiment, the present invention is:
1. bitumen emulsion, this bitumen emulsion is included in a kind of bituminous particle that is scattered under a kind of existence of emulsifying agent in the water, and this emulsifying agent comprises sylvic acid or its combination of the lipid acid of a kind of lipid acid, a kind of chemically modified, a kind of sylvic acid, a kind of chemically modified.
2. method of making bitumen emulsion, this method comprises with the stirring that is enough to produce a kind of emulsion the pitch of (i) a kind of fusing, (ii) a kind of emulsifying agent, this emulsifying agent comprises sylvic acid or its combination of the lipid acid of a kind of lipid acid, a kind of chemically modified, a kind of sylvic acid, a kind of chemically modified, and (iii) water carries out blend.
3. each described bitumen emulsion in the above paragraph, wherein this bitumen emulsion is dried to a kind of film that reduces viscosity that has.
4. each described bitumen emulsion in the above paragraph, wherein this pitch is a kind of Yatall MA pitch.
5. each described bitumen emulsion in the above paragraph, wherein this emulsifying agent comprises the ready denier oil acid of a kind of ready denier oil acid or a kind of chemically modified.
6. each described bitumen emulsion in the above paragraph, wherein the ready denier oil acid of this ready denier oil acid or chemically modified is to be selected from down group, and it constitutes: the Yatall MA of rough Yatall MA, distillatory Yatall MA, TOFA, dimeracid, oxidation, the Yatall MA of maleinization, oxidation and Yatall MA maleinization and composition thereof.
7. each described bitumen emulsion in the above paragraph, wherein this emulsifying agent is by neutral partly.
8. each described bitumen emulsion in the above paragraph, wherein this glassware for drinking water has at least 8 pH.
9. each described bitumen emulsion in the above paragraph, wherein this glassware for drinking water has the pH between 8 to 12.
10. bitumen emulsion, this bitumen emulsion be included in be scattered under a kind of existence of emulsifying agent in the water and with a kind of bituminous particle of a kind of fine particle weighting agent bonded.
The described bitumen emulsion 11. the preceding paragraph falls, wherein this bitumen emulsion is dried to one and has the film that reduces viscosity.
12. a method that is used for reducing the development of airborne dust at the material that forms dust, thus comprise with as above paragraph in each described bitumen emulsion be applied to a value on the material of this formations dust and reduce airborne dust formation.
13. a method that is used at the reduction airborne dust of the rail motor that the material that forms dust is housed, thus comprise with as above paragraph in each described bitumen emulsion be applied to a value on the material of this formations dust and reduce airborne dust formation.
14. as paragraph 13 described methods, wherein this rail motor is equipped with coal.
15. one kind is used for reducing the method for airborne dust in transportation, storage or operating period at a kind of material that forms dust, thus comprise with as above paragraph in each described bitumen emulsion be applied to a value on the material of this formations dust and reduce airborne dust formation.
16. as paragraph 15 described methods, wherein the material of this formation dust is a coal.
The present invention is described by the reference specific embodiment.Yet the application is intended to cover and does not deviate under the spirit and scope of the present invention change and the replacement that can be made by those of ordinary skills.Unless point out definitely in addition, all per-cents are by weight.Running through this specification sheets and the term " about " in claims is intended to comprise+or-5%, and only typically should change to approximately+or-2%.
Claims (20)
1. bitumen emulsion, this bitumen emulsion is included in a kind of bituminous particle that is scattered under a kind of existence of emulsifying agent in the water, and this emulsifying agent comprises sylvic acid or its combination of the lipid acid of a kind of lipid acid, a kind of chemically modified, a kind of sylvic acid, a kind of chemically modified.
2. method of making bitumen emulsion, this method comprises with the stirring that is enough to produce a kind of emulsion the pitch of (i) a kind of fusing, (ii) a kind of emulsifying agent, this emulsifying agent comprises sylvic acid or its combination of the lipid acid of a kind of lipid acid, a kind of chemically modified, a kind of sylvic acid, a kind of chemically modified, and (iii) water carries out blend.
3. method that is used for reducing the development of the material airborne dust that forms dust at the material that forms dust, thus comprising bitumen emulsion as claimed in claim 1 is applied to a value on the material of this formations dust reduces airborne dust formation.
4. bitumen emulsion as claimed in claim 1, wherein this bitumen emulsion is dried to one and has the film that reduces viscosity.
5. bitumen emulsion as claimed in claim 1, wherein this pitch is a kind of Yatall MA pitch.
6. bitumen emulsion as claimed in claim 1, wherein this emulsifying agent comprises the ready denier oil acid of a kind of ready denier oil acid or a kind of chemically modified.
7. bitumen emulsion as claimed in claim 1, wherein this emulsifying agent is by neutral partly.
8. bitumen emulsion as claimed in claim 7, wherein this glassware for drinking water has at least 8 pH.
9. bitumen emulsion as claimed in claim 8, wherein this glassware for drinking water has the pH between 8 to 12.
10. bitumen emulsion as claimed in claim 1, wherein this emulsifying agent is to be selected from down group, and it constitutes: the Yatall MA of rough Yatall MA, distillatory Yatall MA, TOFA, dimeracid, oxidation, the Yatall MA of maleinization, oxidation and Yatall MA maleinization are with its mixture.
11. a method that is used for reducing at the rail motor that the material that forms dust is housed airborne dust, thereby comprising bitumen emulsion as claimed in claim 1 is applied to a value on the material of this formations dust reduces airborne dust formation.
12. method as claimed in claim 10, wherein this rail motor is equipped with coal.
13. one kind is used for reducing the method for airborne dust in transportation, storage or operating period at a kind of material that forms dust, thereby comprising bitumen emulsion as claimed in claim 1 is applied to a value on the material of this formations dust reduces airborne dust formation.
14. method as claimed in claim 13, wherein the material of this formation dust is a coal.
Be scattered in the water and a kind of bituminous particle that combines with a kind of fine particle weighting agent 15. a bitumen emulsion, this bitumen emulsion are included under a kind of existence of emulsifying agent.
16. bitumen emulsion as claimed in claim 15, wherein this pitch is a kind of Yatall MA pitch.
17. bitumen emulsion as claimed in claim 15, wherein this weighting agent is a kind of calcium salt.
18. bitumen emulsion as claimed in claim 17, wherein this weighting agent is a kind of lime carbonate.
19. bitumen emulsion as claimed in claim 15, wherein this emulsifying agent is a casein.
20. bitumen emulsion as claimed in claim 15, wherein this glassware for drinking water has the pH between 8 to 12.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US8584008P | 2008-08-02 | 2008-08-02 | |
| US61/085,840 | 2008-08-02 | ||
| PCT/US2009/052444 WO2010017108A2 (en) | 2008-08-02 | 2009-07-31 | Pitch emulsions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102112574A true CN102112574A (en) | 2011-06-29 |
| CN102112574B CN102112574B (en) | 2014-07-02 |
Family
ID=41119518
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980129757.8A Expired - Fee Related CN102112574B (en) | 2008-08-02 | 2009-07-31 | Pitch emulsions |
Country Status (9)
| Country | Link |
|---|---|
| US (2) | US8133408B2 (en) |
| CN (1) | CN102112574B (en) |
| AU (1) | AU2009279811B2 (en) |
| BR (1) | BRPI0916734A2 (en) |
| CA (1) | CA2732315C (en) |
| CL (1) | CL2011000157A1 (en) |
| MX (1) | MX2011001041A (en) |
| WO (1) | WO2010017108A2 (en) |
| ZA (1) | ZA201100527B (en) |
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| CN103773028A (en) * | 2014-01-20 | 2014-05-07 | 南通东南公路工程有限公司 | Fatty acid emulsified asphalt material |
| CN104974536A (en) * | 2015-07-07 | 2015-10-14 | 绍兴兰亭沥青技术有限公司 | Environmental protection modified emulsified asphalt and preparation method thereof |
| CN108698950A (en) * | 2016-01-15 | 2018-10-23 | Arr-Maz产品公司 | The fertilizer of anti-dust and caking |
| CN110564166A (en) * | 2019-08-23 | 2019-12-13 | 武汉市市政建设集团有限公司 | Preparation method of cold supplement agent for asphalt cold supplement |
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-
2009
- 2009-07-31 WO PCT/US2009/052444 patent/WO2010017108A2/en active Application Filing
- 2009-07-31 AU AU2009279811A patent/AU2009279811B2/en not_active Ceased
- 2009-07-31 MX MX2011001041A patent/MX2011001041A/en active IP Right Grant
- 2009-07-31 BR BRPI0916734A patent/BRPI0916734A2/en not_active IP Right Cessation
- 2009-07-31 CA CA2732315A patent/CA2732315C/en not_active Expired - Fee Related
- 2009-07-31 US US12/533,726 patent/US8133408B2/en not_active Expired - Fee Related
- 2009-07-31 CN CN200980129757.8A patent/CN102112574B/en not_active Expired - Fee Related
- 2009-07-31 US US13/057,159 patent/US8557138B2/en active Active
-
2011
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103242805A (en) * | 2013-05-23 | 2013-08-14 | 北京嘉孚科技有限公司 | Novel environment-friendly road surface dust suppressant |
| CN103242805B (en) * | 2013-05-23 | 2015-04-15 | 北京嘉孚科技有限公司 | Novel environment-friendly road surface dust suppressant |
| CN103773028A (en) * | 2014-01-20 | 2014-05-07 | 南通东南公路工程有限公司 | Fatty acid emulsified asphalt material |
| CN104974536A (en) * | 2015-07-07 | 2015-10-14 | 绍兴兰亭沥青技术有限公司 | Environmental protection modified emulsified asphalt and preparation method thereof |
| CN108698950A (en) * | 2016-01-15 | 2018-10-23 | Arr-Maz产品公司 | The fertilizer of anti-dust and caking |
| CN110564166A (en) * | 2019-08-23 | 2019-12-13 | 武汉市市政建设集团有限公司 | Preparation method of cold supplement agent for asphalt cold supplement |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102112574B (en) | 2014-07-02 |
| CL2011000157A1 (en) | 2011-04-08 |
| AU2009279811B2 (en) | 2014-08-28 |
| CA2732315C (en) | 2016-02-16 |
| WO2010017108A3 (en) | 2010-04-08 |
| MX2011001041A (en) | 2011-05-19 |
| AU2009279811A1 (en) | 2010-02-11 |
| US8133408B2 (en) | 2012-03-13 |
| CA2732315A1 (en) | 2010-02-11 |
| BRPI0916734A2 (en) | 2015-11-10 |
| US8557138B2 (en) | 2013-10-15 |
| US20110168943A1 (en) | 2011-07-14 |
| US20100025625A1 (en) | 2010-02-04 |
| WO2010017108A2 (en) | 2010-02-11 |
| ZA201100527B (en) | 2012-06-27 |
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